6 Sep
2016
6 Sep
'16
9:16 p.m.
On Tue, 2016-09-06 at 19:28 +0800, jiang.biao2@zte.com.cn wrote:
Hi,
I found current gma500 fbdev driver does not support the virtual mapping for the fb pages, instead it only uses stolen pages and supports high resolution console by reducing the color depth. It works well with fbcon for high resolution envirnment.
The text mode console code can't support a non-linear mapping and trying to grab one used most or all of the vmalloc address space on a 32bit box (and most of those systems are only able to run 32bit).
For the sake of a bootscreen loader (which could use DRM directly instead if it needed high resolution) it didn't seem worht it.
Either way it's not IMHO a good idea for 32bit, 64bit maybe.
Alan